X=2y+8 dan 3y=x-7 tlg dijawabin please

X = 2y + 8
3y = x – 7

Karena nilai x sudah ada maka tinggal disubstitusikan.

3y = 2y + 8 – 7
3y – 2y = 1
y = 1

lalu substitusikan lagi..

3y = x – 7
3(1) = x – 7
3 = x – 7
3 + 7 = x
10 = x
x = 10

HP = {x,y}
HP = {10,1}